Noise - Sound

"Sound: measurable, objective quantity

Noise: individual perception"

Simple explanation sound - noise:

A ticking clock can be very loud for one person and not for another ...

Sound can be measured. It propagates in the form of sound waves. The frequency of the sound waves and the sound pressure level (loudness) can be described objectively.

However, personal perception cannot be measured. Our perception depends on ourselves and also on our surroundings. At night, a ticking clock can be very disturbing. We perceive the ticking as unbearable noise that prevents us from sleeping. On a noisy street, no one will notice the ticking clock. It is not perceived as disturbing.

Sound is objectively measurable. Noise is what we and our sensation make of sound.

Exact definition of sound:

Sound generally refers to mechanical vibrations in an elastic medium (gas, liquid, solid). These vibrations propagate in the form of Sound waves away. In air, sound waves are pressure and density fluctuations.

Accurate definition of noise:

As Noise or also Noise is the term used to describe noises (sound) which, due to their structure (usually volume), have a disturbing effect (noise) on the environment (especially people), are a nuisance or are harmful to health.